Sudan IV was discovered in adulterated palm oil. Sudan dyes are considered harmful to human health as it contains chemicals that could cause cancer.
Adulteration of palm oil is a recurring issue that has been taking place in many countries. Sudan dye used as palm oil colorant has adverse effects on albino rats' hepatic functions and could be harmful to human consumers. This calls for more studies and enactments of restrictive laws on palm oil's public consumption with Sudan dye colorant. Sudan dyes I, II, III, IV, and their degradation products are considered harmful to human health as they affect liver functions adversely. It contains teratogenicity, genotoxicity, and carcinogenicity, which could lead to cancer.